There is a plethora of definitions for this term. In particular the marketing environment tends to reduce brand consulting to short term, literally superficial measures such as advertising or the design of brand logos.
Classic brand consulting, however, acts at the strategic interface between corporate management and marketing. BrandTrust, for instance, defines its services as brand-centric corporate management.
In that sense, brand consulting means helping clients to orient their entire organizations toward delivering and marketing their performances in a credible and attractive fashion and to differentiate them from the competition.